146263806561 has 8 divisors (see below), whose sum is σ = 200289176704. Its totient is φ = 94873820400.

The previous prime is 146263806553. The next prime is 146263806569. The reversal of 146263806561 is 165608362641.

It is an interprime number because it is at equal distance from previous prime (146263806553) and next prime (146263806569).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 146263806561 - 2³ = 146263806553 is a prime.

It is a super-2 number, since 2×146263806561² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 146263806561.

It is not an unprimeable number, because it can be changed into a prime (146263806569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658845865 + ... + 658846086.

It is an arithmetic number, because the mean of its divisors is an integer number (25036147088).

Almost surely, 2^146263806561 is an apocalyptic number.

It is an amenable number.

146263806561 is a deficient number, since it is larger than the sum of its proper divisors (54025370143).

146263806561 is a wasteful number, since it uses less digits than its factorization.

146263806561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317691991.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 146263806561 in words is "one hundred forty-six billion, two hundred sixty-three million, eight hundred six thousand, five hundred sixty-one".